CN116907584B - Lightning arrester on-line monitoring system and method based on information fusion - Google Patents
Lightning arrester on-line monitoring system and method based on information fusion Download PDFInfo
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses an information fusion-based lightning arrester on-line monitoring system and method.A data acquisition module detects leakage current and external temperature and humidity of the lightning arrester in real time, and an unmanned aerial vehicle inspection module detects external defects and internal temperature of the lightning arrester and sends the detected external defects and internal temperature and the data acquired by the data acquisition module to a remote monitoring center as inspection data. And determining whether to carry out instant inspection and the instant inspection level by carrying out data comparison among lightning arresters in different phases at the same position. Through unmanned aerial vehicle regular inspection and instant inspection, can collect the relevant data of arrester more comprehensively, through carrying out the classification according to emergency to unmanned aerial vehicle instant inspection, can more reasonable utilization unmanned aerial vehicle inspection data under the condition of saving the cost, provide more basis for the aassessment of arrester running state, more comprehensive accurate judgement arrester running state to carry out corresponding processing when arrester state is unusual.
Description
Technical Field
The invention relates to the field of remote monitoring, in particular to an on-line monitoring system and method for a lightning arrester based on information fusion.
Background
The arrester is mainly used for limiting overvoltage in the system. For the power system, when abnormal conditions such as lightning stroke or overvoltage occur, in order to avoid insulation damage of related power equipment, the lightning arrester can introduce high voltage into the ground, so that large voltage loaded on the protected equipment is rapidly reduced, insulation protection of the related power equipment is realized, and continuous and stable operation of the power equipment is further ensured. The lightning arresters are connected between the cable and ground, typically in parallel with the equipment to be protected. Once abnormal voltage occurs, the lightning arrester acts to play a role in protection. When the cable or the equipment operates under normal operating voltage, the lightning arrester does not act, and is regarded as open circuit for the ground. Once a high voltage occurs and the insulation of the protected equipment is compromised, the arrester acts immediately, directing the high voltage surge current to ground, limiting the voltage amplitude, protecting the cable from the equipment insulation. After the overvoltage disappears, the lightning arrester quickly returns to the original state, so that the circuit works normally.
With the widespread use of lightning arresters, the grid accidents caused by lightning strike overvoltages are greatly reduced. However, the accident of the lightning arrester equipment also happens sometimes, and the safe operation of the power grid is threatened, for example, the aging, the wetting and the like of a valve plate of the lightning arrester can cause the performance of a product of the lightning arrester, so that the normalized monitoring of the comprehensive performance of the lightning arrester becomes an important work of operation and maintenance personnel of a power grid system.
In the prior art, on-line monitoring of the lightning arrester is mainly characterized by leakage current data, the leakage current can reflect the insulation condition of the lightning arrester, and the on-line monitoring is an important means for judging whether the lightning arrester is good or not under the operating voltage. Chinese patent application CN105301323a discloses a method for online detecting leakage current of an extra-high voltage dc arrester by using cloud technology, and related information of the leakage current of the dc arrester is obtained through a central monitoring device. Chinese patent application CN106066437A discloses an on-line monitoring device and a monitoring method for a metal oxide arrester, considers the influence of harmonic voltage on a capacitive current compensation method, and reduces the false judgment of the actual condition of the arrester caused by harmonic interference.
However, the following disadvantages exist during actual use: the abnormal leakage current data may sometimes be caused by environmental factors, abnormal equipment assembly and the like, and is not entirely caused by the abnormal lightning arrester, so that a power failure test is required to confirm the cause of the abnormality, so that the detection work is time-consuming and laborious.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an on-line lightning arrester monitoring system and method based on information fusion.
In order to achieve the above object, the following technical scheme is provided:
an information fusion-based lightning arrester on-line monitoring method, wherein:
step S1: the data acquisition module detects and records real-time data of the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module;
step S2: the unmanned aerial vehicle inspection module periodically inspects each lightning arrester, the data acquired by the data acquisition module are sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile, the unmanned aerial vehicle inspection module also detects external defects and internal temperatures of the lightning arresters and sends the data acquired by the data acquisition module and the data acquired by the data acquisition module to the remote monitoring center as periodic inspection data;
step S3: when the data of the lightning arrester is abnormal, the lightning arrester actively acquires the data of other two-phase lightning arresters at the same position and judges whether the data meets preset conditions, if so, the data acquisition module sends alarm information to a remote monitoring center, requests an unmanned aerial vehicle inspection module to conduct instant inspection, and enters a step S4, and if not, the data acquisition module returns to the step S2;
step S4: the unmanned aerial vehicle inspection module receives an instant inspection instruction sent by the remote monitoring center so as to conduct instant inspection on the corresponding lightning arrester.
As a further improvement scheme of the invention, the data acquired by the data acquisition module comprises lightning arrester leakage current and lightning arrester external temperature and humidity.
As a further improvement scheme of the invention, the unmanned aerial vehicle inspection module further comprises a depth image sensor and an infrared image sensor, and the depth image sensor and the infrared image sensor are used for detecting external defects and internal temperature of the lightning arrester.
As a further improvement of the present invention, the step S3 further includes:
when the leakage current and the temperature and humidity data of the lightning arrester exceed the threshold values, the lightning arrester actively acquires the leakage current data and the temperature and humidity data of other two-phase lightning arresters at the same position;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters are normal, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct first instant inspection;
if the leakage current data of the other two-phase lightning arresters are normal and the temperature and humidity data exceed the threshold value, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct second instant inspection;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters exceed the threshold value, a prompt tag is arranged in the data acquired by the data acquisition module, and the unmanned aerial vehicle inspection module waits for periodic inspection.
As a further improvement scheme of the invention, the step S4 further comprises that the unmanned aerial vehicle inspection module performs instant inspection on the corresponding lightning arrester, receives the data acquired by the data acquisition module of the corresponding lightning arrester, and simultaneously detects the external defect and the internal temperature of the lightning arrester; and the data collected by the data collection module is used as instant inspection data to be sent to a remote monitoring center.
As a further improvement scheme of the invention, the remote monitoring center receives and records regular inspection data of the unmanned aerial vehicle inspection module, analyzes the historical inspection data of each lightning arrester, and searches the historical leakage current data in a similar environment in the latest time by taking the latest leakage current data and the latest temperature and humidity data as references, wherein the similar environment means that the similarity of the temperature and humidity data is higher than a threshold value;
and if the similarity between the latest leakage current data and the historical leakage current data is lower than a threshold value, the remote monitoring center automatically initiates an instant inspection instruction to the unmanned aerial vehicle inspection module so as to carry out third instant inspection on the corresponding lightning arrester.
As a further improvement of the present invention, the first instant inspection priority is higher than the second instant inspection priority, and the second instant inspection priority is higher than the third instant inspection priority.
As a further improvement scheme of the invention, if the unmanned aerial vehicle inspection module receives a second instant inspection instruction and a third instant inspection instruction for the same lightning arrester in the same time window, the instant inspection priority of the lightning arrester is modified to be the highest level, namely, the first instant inspection is automatically updated;
if the unmanned aerial vehicle inspection module receives the instant inspection instructions aiming at the plurality of lightning arresters, instant inspection is carried out according to the priority order;
if the unmanned aerial vehicle inspection module receives a plurality of instant inspection instructions with the same priority, performing instant inspection according to the time sequence of the received instant inspection instructions;
if the regular inspection and the instant inspection time of the unmanned aerial vehicle inspection module aiming at the same lightning arrester are coincident, only one inspection is carried out aiming at the lightning arrester.
As a further improvement scheme of the invention, the remote monitoring center receives regular inspection data and instant inspection data of the unmanned aerial vehicle inspection module, and evaluates the states of the lightning arresters according to the regular inspection data and the instant inspection data, so that corresponding processing is performed when the states of the lightning arresters are abnormal.
The utility model provides an arrester on-line monitoring system based on information fusion, includes the arrester, data acquisition module, unmanned aerial vehicle patrols and examines the module, remote monitoring center, wherein:
the acquisition module is used for: the lightning arrester real-time data detection and recording module is used for carrying out real-time data detection and recording on the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module;
and (3) a periodic inspection module: the unmanned aerial vehicle inspection module periodically inspects each lightning arrester, the data acquired by the data acquisition module are sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile, the unmanned aerial vehicle inspection module also detects external defects and internal temperatures of the lightning arresters and sends the data acquired by the data acquisition module and the data acquired by the data acquisition module to the remote monitoring center as periodic inspection data;
the instant inspection module: when the data of the lightning arresters are abnormal, the lightning arresters actively acquire the data of other two-phase lightning arresters at the same position and judge whether the data meet preset conditions, if yes, the data acquisition module sends alarm information to the remote monitoring center to request the unmanned aerial vehicle inspection module to conduct instant inspection, and the unmanned aerial vehicle inspection module receives instant inspection instructions sent by the remote monitoring center to conduct instant inspection on the corresponding lightning arresters; if not, returning to regular inspection.
The beneficial effects of the invention are as follows:
1. by monitoring leakage current and temperature and humidity of the lightning arrester, the running state of the lightning arrester can be judged more comprehensively and accurately.
2. The data which cannot be acquired by the lightning arrester data acquisition module can be complemented through regular inspection and instant inspection of the unmanned aerial vehicle, so that more basis is provided for the evaluation of the running state of the lightning arrester.
3. The unmanned aerial vehicle is classified according to emergency by instant inspection, so that the unmanned aerial vehicle inspection data can be more reasonably utilized under the condition of saving cost, and more basis is provided for the evaluation of the running state of the lightning arrester.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is a flow chart of an on-line monitoring method of a lightning arrester based on information fusion;
FIG. 2 is a block diagram of a data acquisition module according to the present invention;
fig. 3 is a structural diagram of the unmanned aerial vehicle inspection module in the invention.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Examples
Fig. 1 is a flow chart of an on-line monitoring method of an arrester based on information fusion. As shown in fig. 1, the method comprises the following steps:
step S1: the data acquisition module detects and records real-time data of the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module.
The data acquisition module is connected with the lightning arrester and comprises a leakage current sensor, a temperature sensor and a humidity sensor, and is used for detecting leakage current of the lightning arrester, and temperature and humidity outside the lightning arrester in real time and recording the leakage current and the temperature and the humidity.
Because the change of the leakage current of the lightning arrester has a great relationship with the temperature and humidity of the environment, the temperature and humidity information is collected while the leakage current of the lightning arrester is detected, so that the running state of the lightning arrester is comprehensively judged.
The data acquisition module comprises a first wireless transmission module and a second wireless transmission module, wherein the first wireless transmission module is used for communicating with the unmanned aerial vehicle inspection module, and the second wireless transmission module is used for sending alarm information to a remote monitoring center when a preset condition is met, and requesting the unmanned aerial vehicle inspection module to conduct instant inspection;
step S2: the unmanned aerial vehicle inspection module periodically inspects each arrester, the data acquired by the data acquisition module is sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile, the unmanned aerial vehicle inspection module also detects external defects and internal temperature of the arrester and is used as periodic inspection data together with the data acquired by the data acquisition module to be sent to a remote monitoring center.
The unmanned aerial vehicle inspection module comprises a third wireless transmission module and is used for communicating with the first wireless transmission module and receiving data acquired by the data acquisition module.
Step S3: when the data of the lightning arrester are abnormal, the lightning arrester actively acquires the data of other two-phase lightning arresters at the same position and judges whether the data meet preset conditions, if so, the data acquisition module sends alarm information to a remote monitoring center through a second wireless transmission module, an unmanned aerial vehicle inspection module is requested to carry out instant inspection, the step S4 is carried out, and if not, the step S2 is returned;
step S4: the unmanned aerial vehicle inspection module receives an instant inspection instruction sent by the remote monitoring center so as to conduct instant inspection on the corresponding lightning arrester.
The step S4 further comprises the steps that the unmanned aerial vehicle inspection module performs instant inspection on the corresponding lightning arrester, receives data acquired by the data acquisition module of the corresponding lightning arrester, and detects external defects and internal temperature of the lightning arrester; and the data collected by the data collection module is used as instant inspection data to be sent to a remote monitoring center.
The unmanned aerial vehicle inspection module is used for periodically inspecting all lightning arresters in an area according to preset frequency, collecting data of the data collecting module in the inspection process, collecting information of other dimensions of the lightning arresters, including depth images and infrared images, so that external defects of the lightning arresters are detected according to the depth image data, and internal temperature of the lightning arresters is detected according to the infrared images. When lightning arrester equipment is improperly assembled, such as poor sealing of a sealing hole and obvious rust marks or damage of a fastening piece, the leakage current of the lightning arrester can be influenced, and external defects of the lightning arrester can be timely checked through depth image data. In addition, can lead to the resistive current increase when the inside valve block of arrester ages for the inside heating of arrester can in time check the inside temperature of thunder ware through infrared image. The data which cannot be acquired by the lightning arrester data acquisition module can be complemented through regular inspection and instant inspection of the unmanned aerial vehicle, so that more basis is provided for the evaluation of the running state of the lightning arrester.
Although more comprehensive data can be obtained by using unmanned aerial vehicle inspection, due to the fact that the cost is high and real-time detection cannot be achieved, besides regular inspection, alarm information can be sent to a remote monitoring center when data acquired by a data acquisition module are abnormal, and an instant inspection instruction is sent to the unmanned aerial vehicle inspection module by the remote monitoring center so as to carry out instant inspection on corresponding lightning arresters, so that the lightning arrester states are monitored more timely and comprehensively, and the lightning arrester states are evaluated more accurately.
Wherein, the preset conditions in step S3 include:
when the leakage current and the temperature and humidity data of the lightning arrester exceed the threshold value, acquiring the leakage current data and the temperature and humidity data of other two-phase lightning arresters;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters are normal, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct first instant inspection;
if the leakage current data of the other two-phase lightning arresters are normal and the temperature and humidity data exceed the threshold value, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct second instant inspection;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters exceed the threshold value, a prompt tag is arranged in the data acquired by the data acquisition module, and the unmanned aerial vehicle inspection module waits for periodic inspection.
The quality defect problem of the lightning arrester causes that when the lightning arrester has ponding and temperature rise, the leakage current is often reflected, but the leakage current can be influenced by the environmental temperature and humidity to fluctuate, and when the environmental temperature and humidity rise, the leakage current floats and belongs to a normal phenomenon. In order to judge the state of the lightning arrester more accurately, when the leakage current and the temperature and humidity data of the target lightning arrester exceed the threshold values, the leakage current data and the temperature and humidity data of other two-phase lightning arresters are obtained to serve as references, if the data of the other two-phase lightning arresters are normal, the possibility that the leakage current of the target lightning arrester is abnormal and the defect of the lightning arrester is related is high, alarm information is sent to a remote monitoring center, and the unmanned aerial vehicle inspection module is requested to conduct first instant inspection. If the leakage current data of other two-phase lightning arresters are normal and the temperature and humidity data exceed the threshold value, the condition that the leakage current of the target lightning arresters is abnormal may be caused by the influence of the environmental temperature and humidity or may be caused by the defect of the target lightning arresters, so that alarm information is sent to a remote monitoring center to request the unmanned aerial vehicle inspection module to conduct second instant inspection, and the emergency degree of the unmanned aerial vehicle inspection module is lower than that of the first instant inspection. If the leakage current data and the temperature and humidity data of other two-phase lightning arresters exceed the threshold value, the possibility that the leakage current of the target lightning arrester is influenced by the environmental temperature and humidity is high, and therefore the emergency degree is lower than that of the former two conditions, so that the unmanned aerial vehicle inspection module is not required to be required to carry out instant inspection, but a prompt tag is arranged in the data acquired by the data acquisition module, and the regular inspection of the unmanned aerial vehicle inspection module is waited. The prompt tag is used for the remote monitoring center to refer to the analysis of the historical inspection data.
The remote monitoring center receives and records regular inspection data of the unmanned aerial vehicle inspection module, analyzes the historical inspection data of each lightning arrester, and searches historical leakage current data in a similar environment in the latest time by taking latest leakage current data and temperature and humidity data as references, wherein the similar environment means that the similarity of the temperature and humidity data is higher than a threshold value;
and if the similarity between the latest leakage current data and the historical leakage current data is lower than a threshold value, the remote monitoring center automatically initiates an instant inspection instruction to the unmanned aerial vehicle inspection module so as to carry out third instant inspection on the corresponding lightning arrester.
The first instant patrol priority is higher than the second instant patrol priority, which is higher than the third instant patrol priority.
The problems of aging and the like of the lightning arrester are that real-time data acquired by the data acquisition module is not easy to find an abnormal place along with the time, and comprehensive historical data is needed to comprehensively judge and evaluate. Therefore, the remote monitoring center analyzes historical inspection data of each arrester, and when the leakage current data of the same arrester have larger difference under similar environments, the remote monitoring center automatically initiates an instant inspection instruction to the unmanned aerial vehicle inspection module to conduct third instant inspection on the corresponding arrester, wherein the emergency degree of the third instant inspection is lower than that of the first instant inspection and the second instant inspection.
Optionally, when the remote monitoring center analyzes the historical inspection data of each arrester, if the similarity between the latest leakage current data and the historical leakage current data is lower than a threshold value, and the prompt tag exists in the historical data of each arrester, the remote monitoring center automatically initiates an instant inspection instruction to the unmanned aerial vehicle inspection module so as to conduct second instant inspection on the corresponding arrester.
Optionally, if the unmanned aerial vehicle inspection module receives the second instant inspection instruction and the third instant inspection instruction for the same lightning arrester in the same time window, the instant inspection priority of the lightning arrester is modified to be the highest level, that is, automatically updated to be the first instant inspection.
Optionally, if the unmanned aerial vehicle inspection module receives the instant inspection instructions for the plurality of lightning arresters, instant inspection is performed according to the priority order;
optionally, if the unmanned aerial vehicle inspection module receives a plurality of instant inspection instructions with the same priority, performing instant inspection according to the time sequence of the received instant inspection instructions;
optionally, if the regular inspection time and the instant inspection time of the unmanned aerial vehicle inspection module for the same lightning arrester coincide, only one inspection is performed for the lightning arrester.
Optionally, the remote monitoring center receives regular inspection data and instant inspection data of the unmanned aerial vehicle inspection module, and evaluates states of the lightning arresters according to the regular inspection data and the instant inspection data, so that corresponding processing is performed when the states of the lightning arresters are abnormal.
Examples
The second embodiment of the invention provides an information fusion-based lightning arrester on-line monitoring system, which is used for realizing the information fusion-based lightning arrester on-line monitoring method in the first embodiment, and comprises a lightning arrester, a data acquisition module, an unmanned aerial vehicle inspection module and a remote monitoring center, wherein:
the acquisition module is used for: the lightning arrester real-time data detection and recording module is used for carrying out real-time data detection and recording on the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module;
and (3) a periodic inspection module: the system comprises a data acquisition module, an unmanned aerial vehicle inspection module, a remote monitoring center, a first wireless transmission module, a second wireless transmission module, a remote monitoring center and a remote control center, wherein the data acquisition module is used for acquiring data of each lightning arrester periodically through the unmanned aerial vehicle inspection module, the data acquired by the data acquisition module is sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile the unmanned aerial vehicle inspection module also detects external defects and internal temperatures of the lightning arrester and is used as periodic inspection data together with the data acquired by the data acquisition module;
the instant inspection module: when the data of the lightning arresters are abnormal, the lightning arresters actively acquire the data of other two-phase lightning arresters at the same position and judge whether the data meet preset conditions, if yes, the data acquisition module sends alarm information to the remote monitoring center to request the unmanned aerial vehicle inspection module to conduct instant inspection, and the unmanned aerial vehicle inspection module receives instant inspection instructions sent by the remote monitoring center to conduct instant inspection on the corresponding lightning arresters; if not, returning to regular inspection.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. An on-line monitoring method of a lightning arrester based on information fusion is characterized in that:
step S1: the data acquisition module detects and records real-time data of the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module;
step S2: the unmanned aerial vehicle inspection module periodically inspects each lightning arrester, the data acquired by the data acquisition module are sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile, the unmanned aerial vehicle inspection module also detects external defects and internal temperatures of the lightning arresters and sends the data acquired by the data acquisition module and the data acquired by the data acquisition module to the remote monitoring center as periodic inspection data;
step S3: when the data of the lightning arrester are abnormal, the lightning arrester actively acquires the data of other two-phase lightning arresters at the same position and judges whether the data meet preset conditions, if so, the data acquisition module sends alarm information to a remote monitoring center through a second wireless transmission module, an unmanned aerial vehicle inspection module is requested to carry out instant inspection, the step S4 is carried out, and if not, the step S2 is returned;
step S4: the unmanned aerial vehicle inspection module receives an instant inspection instruction sent by the remote monitoring center so as to carry out instant inspection on the corresponding lightning arrester;
the data acquired by the data acquisition module comprises lightning arrester leakage current and external temperature and humidity of the lightning arrester;
the unmanned aerial vehicle inspection module further comprises a depth image sensor and an infrared image sensor, and is used for detecting external defects and internal temperature of the lightning arrester;
the step S3 further includes:
when the leakage current and the temperature and humidity data of the lightning arrester exceed the threshold values, the lightning arrester actively acquires the leakage current data and the temperature and humidity data of other two-phase lightning arresters at the same position;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters are normal, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct first instant inspection;
if the leakage current data of the other two-phase lightning arresters are normal and the temperature and humidity data exceed the threshold value, sending alarm information to a remote monitoring center, and requesting the unmanned aerial vehicle inspection module to conduct second instant inspection;
if the leakage current data and the temperature and humidity data of other two-phase lightning arresters exceed the threshold value, a prompt tag is set in the data acquired by the data acquisition module, and the unmanned aerial vehicle inspection module waits for periodic inspection;
the step S4 further comprises the steps that the unmanned aerial vehicle inspection module performs instant inspection on the corresponding lightning arrester, receives data acquired by the data acquisition module of the corresponding lightning arrester, and detects external defects and internal temperature of the lightning arrester; the data collected by the data collection module is used as instant inspection data to be sent to a remote monitoring center;
the remote monitoring center receives and records regular inspection data of the unmanned aerial vehicle inspection module, analyzes the historical inspection data of each lightning arrester, and searches historical leakage current data in a similar environment in the latest time by taking latest leakage current data and temperature and humidity data as references, wherein the similar environment means that the similarity of the temperature and humidity data is higher than a threshold value;
if the similarity between the latest leakage current data and the historical leakage current data is lower than a threshold value, the remote monitoring center automatically initiates an instant inspection instruction to the unmanned aerial vehicle inspection module so as to carry out third instant inspection on the corresponding lightning arrester;
the first instant inspection priority is higher than the second instant inspection priority, and the second instant inspection priority is higher than the third instant inspection priority;
if the unmanned aerial vehicle inspection module receives a second instant inspection instruction and a third instant inspection instruction aiming at the same lightning arrester in the same time window, the instant inspection priority of the lightning arrester is modified to be the highest level, namely, the first instant inspection is automatically updated;
if the unmanned aerial vehicle inspection module receives the instant inspection instructions aiming at the plurality of lightning arresters, instant inspection is carried out according to the priority order;
if the unmanned aerial vehicle inspection module receives a plurality of instant inspection instructions with the same priority, performing instant inspection according to the time sequence of the received instant inspection instructions;
if the regular inspection and the instant inspection time of the unmanned aerial vehicle inspection module aiming at the same lightning arrester are coincident, only one inspection is carried out aiming at the lightning arrester.
2. The information fusion-based lightning arrester on-line monitoring method according to claim 1, wherein the remote monitoring center receives regular inspection data and instant inspection data of the unmanned aerial vehicle inspection module, and evaluates states of each lightning arrester according to the regular inspection data and the instant inspection data, so that corresponding processing is performed when the states of the lightning arresters are abnormal.
3. An arrester on-line monitoring system based on information fusion for realizing the method of any one of claims 1-2, comprising an arrester, a data acquisition module, an unmanned aerial vehicle inspection module, a remote monitoring center, and the method is characterized in that:
the acquisition module is used for: the lightning arrester real-time data detection and recording module is used for carrying out real-time data detection and recording on the lightning arrester; the lightning arresters at the same position are divided into an A-phase lightning arrester, a B-phase lightning arrester and a C-phase lightning arrester, each phase of lightning arrester comprises a respective data acquisition module, and the data acquisition modules of each phase of lightning arrester are communicated with each other through a first wireless transmission module;
and (3) a periodic inspection module: the system comprises a data acquisition module, an unmanned aerial vehicle inspection module, a remote monitoring center, a first wireless transmission module, a second wireless transmission module, a remote monitoring center and a remote control center, wherein the data acquisition module is used for acquiring data of each lightning arrester periodically through the unmanned aerial vehicle inspection module, the data acquired by the data acquisition module is sent to the unmanned aerial vehicle inspection module through the first wireless transmission module, and meanwhile the unmanned aerial vehicle inspection module also detects external defects and internal temperatures of the lightning arrester and is used as periodic inspection data together with the data acquired by the data acquisition module;
the instant inspection module: when the data of the lightning arresters are abnormal, the lightning arresters actively acquire the data of other two-phase lightning arresters at the same position and judge whether the data meet preset conditions, if yes, the data acquisition module sends alarm information to the remote monitoring center to request the unmanned aerial vehicle inspection module to conduct instant inspection, and the unmanned aerial vehicle inspection module receives instant inspection instructions sent by the remote monitoring center to conduct instant inspection on the corresponding lightning arresters; if not, returning to regular inspection.
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